Training trick daughter studied (7)
I believe the answer is:
perused
'studied' is the definition.
(I've seen this before)
'training trick daughter' is the wordplay.
'training' becomes 'pe'.
'trick' becomes 'ruse' (I've seen this before).
'daughter' becomes 'd'.
'pe'+'ruse'+'d'='PERUSED'
(Other definitions for perused that I've seen before include "Scanned" , "Studied" , "Read (something) very carefully" , "Browsed" .)